Colombian emerald 0.101ct loose stone
Sale price¥15,800
Blue sapphire 4.0mm/0.314ct loose stone
Sale price¥112,800
[E33 Shinjuku] Brazilian Blue Topaz Cat's Eye 2.631ct Loose
Sale price¥9,800
Tanzanian Dragon Garnet 0.829ct Loose Stone
Sale price¥22,800
Tanzanian Dragon Garnet 1.019ct Loose Stone
Sale price¥25,800
Tanzanian Dragon Garnet 0.754ct Loose Stone
Sale price¥19,800
Zimbabwean Bicolor Euclase 0.183ct Loose Stone
Sale price¥49,800
Zimbabwean Bicolor Euclase 0.197ct Loose Stone
Sale price¥39,800
Paraiba tourmaline from Mozambique 0.154ct loose stone
Sale price¥19,800
Tanzanian magnesioaxinite 0.380ct loose stone, Japan-Germany Quantity
Sale price¥39,800
![Limited to 7 stones: One loose Madagascar sapphire (long hexagonal cut, approximately 5 x 3 mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010164.jpg?v=1756867626&width=4000)
![[E33 Shinjuku] Pt950 Myanmar Gray Spinel (Platinum Spinel) 5.5mm/0.685ct Black Diamond Ring](http://store.karatz.jp/cdn/shop/files/collage_9d2c63d9-eb14-4afd-9368-cacc817cec80.png?v=1756858734&width=2000)
Star spinel 1.210ct loose
Sale price¥15,800
Fire Opal 2 Stone Pair 4mm/0.336ct Loose
Sale price¥3,980
Oligoclase Sunstone 26.660ct rough stone
Sale price¥15,800
Red beryl 0.109ct loose
Sale price¥18,800
Montebrasite 4.1mm 2 stone pair loose (green)
Sale price¥6,980
[Posted 12529980] Paraiba tourmaline from Brazil 1.649ct loose
Sale price¥18,800
Particolor tourmaline 24.147ct loose
Sale price¥49,800
Emerald 15.219ct loose Japanese-German book
Sale price¥298,000
Aragonite 2.088ct loose Japanese-German book
Sale price¥25,800
Bicolor Sphene 4.50ct loose
Sale price¥258,000
[Koshu Precious Stone Kiriko] Bicolor Fluorite 6.980ct Loose with Patch
Sale price¥59,800
Red beryl 0.310ct loose
Sale price¥39,800
[Sakura Incut] Moonstone 11mm loose with patch
Sale price¥29,800
Colombian Euclase 548.00ct rough stone
Sale price¥198,000
Kunzite 50.260ct loose
Sale price¥188,000
Tanzanite 4.940ct rough stone
Sale price¥3,980
Kunzite 37.35ct loose
Sale price¥55,800
Bicolor spinel 1.040ct loose (gray/purple)
Sale price¥69,800
![[Dandelion cut] Morganite 7mm/1.02ct loose with patch](http://store.karatz.jp/cdn/shop/files/102ct-439651.jpg?v=1756849922&width=1200)
[Dandelion cut] Morganite 7mm/1.02ct loose with patch
Sale price¥49,800
[Sakura Incut] Ametrine 9.740ct loose with patch
Sale price¥59,800
White topaz 3.780ct loose
Sale price¥9,800
Diamond 0.618ct loose (I, I1, tree cut)
Sale price¥128,000
Bicolor Benitoite 0.067ct loose
Sale price¥25,800
Oligoclase Sunstone 6.432ct Loose Stone
Sale price¥25,800
Paraiba tourmaline from Mozambique, 3.5mm/0.172ct loose stone
Sale price¥15,800
Paraiba tourmaline from Mozambique, 3.2mm/0.119ct loose stone
Sale price¥9,800
Brazilian Elestial Amethyst 0.809ct Loose Stone
Sale price¥6,980
Why not take your favorite gemstone that you found at KARATZ and have it made into custom-made jewelry? It will be made by skilled Japanese craftsmen.
We carefully craft each piece of jewelry, starting with the stone setting, to match the individual characteristics of the gemstone.
So that more people can feel closer to jewellery and enjoy it easily.
We will introduce KARATZ's thoughts on products, the attention to detail and efforts in selecting gemstones and creating jewelry.
KARATZ's Initiatives and Social Contributions
We will introduce KARATZ's efforts, including nurturing the next generation and business collaboration to develop the industry, and supporting children in Sri Lanka, the land of jewels.
KARATZ Books
These are books that KARATZ has been involved in writing, supervising, and planning. They are all books that allow you to enjoy gemstones from various angles. You can also purchase them directly.
jeweler's tools
For those who want to enjoy jewelry more but don't know what tools to use, we will introduce tools that are also used by KARATZ staff. You can also purchase them directly.